Example: n+1 redundancy, Example: battery back-up – Rockwell Automation 1606-XLSPRED Power Supply Reference Manual User Manual
Page 15
All parameters are specified at 24V, 2.5A, 230Vac input, 25ªC ambient and after a 5 minutes run-in time unless noted otherwise.
Rockwell Automation Publication 1606-RM035A-EN-P — April 2014
15
Bulletin 1606 Switched Mode Power Supplies
16.4. Example: N+1 Redundancy
A N+1 redundancy up to 6.3A requires four 16060-XLP50E power supplies (each 2.1A output current) and two
1606-XLPRED redundancy modules.
Fig. 16-2 Wiring diagram, N+1 Redundancy, 6.3A output current
L
N
I
XLP50E
Power
Supply
L N
Input
Output
+ +
- -
DC
OK
XLP50E
Power
Supply
L N
Output
Input
+ +
- -
DC
OK
XLPRED
IN 1
+
-
+
-
Output
+
- -
IN 2
+
Alarm
Monitor
Load
+
-
XLP50E
Power
Supply
L N
Input
Output
+ +
- -
DC
OK
XLP50E
Power
Supply
L N
Output
Input
+ +
- -
DC
OK
XLPRED
IN 1
+
-
+
-
Output
+
- -
IN 2
+
I
I
I
Note: Whenever possible, use separate mains systems for each power supply.
16.5. Example: Battery Back-up
A battery back-up requires one power supply and one 1606-XLPRED redundancy module.
Please note:
Set output voltage of power supply to 26.5Vdc minimum to ensure that the load current is delivered from the power
supply and not from the charger (battery). Use a fuse between the battery and the 1606-XLPRED module!
Fig. 16-3 Wiring diagram, 10A Battery back-up
L
N
PE
24V Battery
I
Battery
Charger
+
-
Failure
Monitor
Load
XLP50E
Power
Supply
L N
Input
Output
+ +
- -
DC
OK
XLPRED
IN 1
+
-
+
-
Output
+
- -
IN 2
+